Description: Made of high quality stainless steel Suitable for Butt weld and fillet weld. Max Convexity: 0, 1/4 (6.35mm), 1/2 (12.7mm), 3/4(19mm) Max Concavity: 0, 1/4 (6.35mm), 1/2 (12.7mm), 3/4(19mm) Fillet Weld Leg Length: 0, 1/8 (3.17mm), 1/4 (6.35mm), 3/8 (9.52mm), 1/2 (12.7mm), 5/8 (15.9mm), 3/4 (19mm) Butt Weld: 1/8 (3.17mm), 1/32 (0.79mm) Specification: Material: high-carbon steel Color: Silver Size: Approx. 80x 76mm/ 3.15x 2.99inch Package Includes: 1 Piece Weld Test Gage Note: The color may have different as the difference display, pls understand. Please allow 1-3mm error due to hand test